The simple way is to just drop a button and double click it to program the logic. However, if you plan to build a real-world application, that approach will soon become unmanageable, and hard to maintain and evolve over time. I suggest you take a look at the new MS User Interface Process Application Block. It helps build UI navigation and control using an extended MCV (model-view-controller) pattern, which will also make your application easily portable to Windows Forms in the future if you have to.
This was first published in July 2003